User`s guide

IBM PC/XT, PC/AT, and Compatible
Computers
The following tables show the suggested pinouts for IBM PC/XT,
PC/AT, and compatible computers.
Pinout:
IBM PC/XT
Printer IBM PC/XT
DB-25S DB-25P
11
23
32
45
54
20 6+8
6+8 20
77
Pinout:
IBM PC/AT
Printer IBM PC/AT
DB-25S DB-9P
1 1 (No Connection)
22
33
48
57
6+8 4
75
20 1+6
Appendix A
A-6 Cable Pinouts